how to generate a polynomial
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i have two matrix one is
s=[2 3
4 5]
other is
text = [3 5 6 7
3 4 5 6]
based on my threshold value i should form a polynomial
say for exam threshold is 2 my polynomial should be
P= s(1,1)*x^0 + text(1,1)*x^1
if threshold is 3 my polynomial should be
P= s(1,1)*x^0 + text(1,1)*x^1 + text(1,2)*x^2 i have to process for every
digit like this .... value from should be taken once but from text van be any
number of times based on threshold...
Thanks in advance ..i am not able to trace it out please help
15 Commenti
Azzi Abdelmalek
il 24 Nov 2012
Modificato: Azzi Abdelmalek
il 24 Nov 2012
Then why t(2,1) is repeated?
Walter Roberson
il 24 Nov 2012
In Sharen's comment http://www.mathworks.co.uk/matlabcentral/answers/54693-how-to-generate-a-polynomial#comment_113211, t(2,1) appears only once.
Risposta accettata
Azzi Abdelmalek
il 24 Nov 2012
Modificato: Azzi Abdelmalek
il 24 Nov 2012
s=[2 3 ;4 5]
text = [2 3 4; 5 6 7; 4 5 6]
t=text.'
t=t(:)
th=3;
x=11
[n,m]=size(s)
c=1:th-1;
idx1=1;
idx2=th-1;
for k=1:n
for l=1:m
t1=t(idx1:idx2).'
P(k,l)=s(k,l)+sum(t1.*x.^c)
idx1=idx1+th-1
idx2=idx2+th-1
end
end
3 Commenti
Più risposte (2)
Azzi Abdelmalek
il 24 Nov 2012
Modificato: Azzi Abdelmalek
il 24 Nov 2012
s=[2 3 ;4 5]
text = [3 5 6 7 3 4 5 6]
threshold=4;
x=11
c=1:threshold-1
P=s(1,1)+sum(text(c).*x.^c)
2 Commenti
Matt Fig
il 24 Nov 2012
Sharen, please fill in the blank and define the ranges:
P(m,n) = _________________________
(for m = 1:size(s,1) and n = 1:size(s,2)) <---- correct??
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